Overview

The first action a customer takes after visiting a website is creating an account, usually to place an order, book an appointment, pay for a service, etc. When creating an account it is important to persist the correct email address in the system and verify the user's ownership.

Introduction

One of the most "obscure" features of Python that almost all Python programmers use, even the beginner ones, but don't really understand, is context managers. You've probably seen them in the form of with statements, usually first encountered when you learn opening files in Python. Although context managers seem